(Also if anyone knows how to start the PGN player with a black move, please let me know)
[Event "Juan Martinez Sola Open A"] [Site "Almeria ESP"] [Date "2015.12.18"] [Round "2.1"] [White "Arboledas Fernandez,A"] [Black "Del Rio de Angelis,S"] [FEN "q3r3/5k2/p4n2/2p1p3/1p3n1Q/1P2N2P/2B3P1/3R3K b - - 1 1"] 1. ... Rh8
My thought process is that the white knight is the only thing preventing Qg2#, so maybe putting a knight on d5 can deflect it away.
The solution of the puzzle for black is Rh8. This puts a threat on the white queen but it can just move away. The engine recommends either 2. Be4 Qxe4 and trade off pieces or 2. Bh7 to sacrifice the bishop, but I don't understand why Black has to trade. So why is Rh8 the correct move?